/*
 * Copyright (c) 2009, David A. Freels Sr.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that
 * the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <ORGANIZATION> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package net.whippetcode.plugins.intellij.hudson.util;

import net.whippetcode.plugins.intellij.hudson.HudsonMonitorSettings;
import sun.misc.BASE64Encoder;

import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.logging.Level;

/**
 * This class provides utility methods for perform IO related tasks.
 *
 * @author David A. Freels Sr.
 */
public class IOUtil
{
	private static HudsonMonitorSettings settings;
	private static String userName;
	private static String password;

	public static void setHudsonSettings(HudsonMonitorSettings s)
	{
		settings = s;

		if (settings != null && settings.isAuthenticationRequired())
		{
			userName = settings.getUsername();
			password = settings.getPassword();
			try
			{
				password = CipherUtil.decryptPassword(password);
			}
			catch (Exception e)
			{
				LogUtil.log(Level.WARNING, e.getMessage(), e);
			}
		}
	}

	public static byte[] readBytes(URL url) throws IOException
	{
		InputStream input = getInputStream(url);
		int read;
		byte[] buffer = new byte[4096];
		ByteArrayOutputStream out = new ByteArrayOutputStream();
		while ((read = input.read(buffer)) != -1)
		{
			out.write(buffer, 0, read);
		}
		input.close();

		return out.toByteArray();
	}

	public static InputStream getInputStream(URL url) throws IOException
	{
		URLConnection connection = url.openConnection();
		if (settings != null && settings.isAuthenticationRequired())
		{
			String userPass = userName + ":" + password;
			connection.setRequestProperty("Authorization", "Basic " + new BASE64Encoder().encode(userPass.getBytes()));
		}
		return new BufferedInputStream(connection.getInputStream());
	}
}
